Journal
IONICS
Volume 17, Issue 5, Pages 407-414Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-010-0517-z
Keywords
Batteries; Electrochemical characterizations; Polymer electrolyte; Nanocomposite electrolytes; XRD; Mechanical properties; Thermal stability; Ionic conductivity
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Nanocomposite polymer electrolytes (NCPE) composed of poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) and chitin for different concentrations of LiClO4 have been prepared by a hot-press technique. The prepared NCPE films were subjected to XRD, SEM, FTIR and tensile analyses. The thermal stability of NCPE membrane was investigated by TG-DTA. Ionic conductivity studies have also been made as a function of lithium salt concentration for different temperatures ranging from 0 to 80 A degrees C. The polymeric membrane comprising PVDF-HFP/chitin/LiClO4 of ratio 75:20:5 (wt.%) offered maximum ionic conductivity. Thermal study reveals that these membranes are stable up to 260 A degrees C.
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